3rd-party/linux-kernel-module-cheat
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x86 asm: move bswap from x86-assembly-cheat

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Ciro Santilli 六四事件 法轮功
2019-06-22 00:00:02 +00:00
parent 082901414a
commit fd5b62edfe
2 changed files with 14 additions and 0 deletions
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1
README.adoc
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@@ -12397,6 +12397,7 @@ Bibliography:
* Integer typecasts * Integer typecasts
** link:userland/arch/x86_64/movzx.S[]: MOVZX ** link:userland/arch/x86_64/movzx.S[]: MOVZX
** link:userland/arch/x86_64/movsx.S[]: MOVSX ** link:userland/arch/x86_64/movsx.S[]: MOVSX
* link:userland/arch/x86_64/bswap.S[]: BSWAP: convert between little endian and big endian
==== x86 CQTO and CLTQ instructions ==== x86 CQTO and CLTQ instructions

13
userland/arch/x86_64/bswap.S Normal file
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@@ -0,0 +1,13 @@
# # bswap
# Little endian <=> big endian.
#include <lkmc.h>
LKMC_PROLOGUE
mov $0x12345678, %eax
bswapl %eax
LKMC_ASSERT_EQ_32(%eax, $0x78563412)
LKMC_EPILOGUE